This question already has answers here:
printf how to do floating points with leading zeros
(3 answers)
Closed 7 years ago.
Why does
System.out.format("%03.3f", 1.23456789);
print 1.235 instead of 001.235?
How has my format string to look like to get 001.235 as output of the following code line?
System.out.format(format, 1.23456789);
Number after %0 here defines full width including decimal point, so you need to change it to 7:
System.out.format("%07.3f", 1.23456789);
DecimalFormat formatter = (DecimalFormat)NumberFormat.getNumberInstance(Locale.US);
formatter.applyPattern("000.###");
System.out.format(formatter.format(1.23456789));
Result:
001.234
Demo
Related
This question already has answers here:
Generate a random double in a range
(7 answers)
Using Math.round to round to one decimal place?
(9 answers)
Closed 4 years ago.
I am trying to round to the nearest decimal value, however, this line of code keeps returning a number between 0 and 1, I also want the output to be between 1 and 10. Where am I going wrong?
power[i] = rng.nextDouble();
Math.round(ThreadLocalRandom.nextDouble(1,10)*10)/10.0
You can use JDK's Math.round.
A detailed example can be found here.
This question already has an answer here:
Rounding BigDecimal to *always* have two decimal places
(1 answer)
Closed 6 years ago.
This:
BigDecimal.valueOf(0.00)
becomes 0.0
I want it to be 0.00
What is the correct format pattern for that?
Use the String constructor: new BigDecimal("0.00"). Using BigDecimal.valueOf(double) completely destroys any formatting you used to input the value.
Try this
value = value.setScale(2, RoundingMode.CEILING)
This question already has answers here:
Java BigDecimal remove decimal and trailing numbers
(6 answers)
Closed 6 years ago.
I have a BigDecimal number, I just want to remove the decimal numbers from it,
for example if I have 200.88 then output should be 200?
I tried Bigdecimal rounding function but they wont do the job
You can specify the rounding mode to ROUND_FLOOR when you use round.
This question already has answers here:
How do I print a double value without scientific notation using Java?
(18 answers)
Closed 7 years ago.
when ever I put a big or small number through System.out.println() (in Java), it decides to convert something like 0.003897 to 3.897E-3 which is hard to read when going through my temporary-testing-debug-log-thing.
is there any way to keep it as 0.003897?
Use DecimalFormat like: #.#######
Usage:
DecimalFormat df = new DecimalFormat("#.00");
Either use:
System.out.println( String.format( "%.6f", 123.456789d )
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
How to round a number to n decimal places in Java
I am trying to format a string that is used as currency to two decimal places. For example, if they enter 100, it will format it to 100.00, and if they enter 100.5, it will be formatted to 100.50. What would be the best way to go about this?
You can use DecimalFormat:
new DecimalFormat("###0.00").format(...);
Other constructors of DecimalFormat introduces support to Locale.